GoKawiilPosted on: February 2, 2026 | at 06:54 AM
I’ve been playing the trombone since fourth grade. Today, I’m going to share what I’ve learned about, especially the technical aspects of playing such an instrument.
But first, what’s a trombone?
To understand why playing the trombone is so different, let’s first look at the instrument itself.
Pictured here is a Yamaha tenor trombone. It’s very simple to assemble as it’s just 2 parts: the horn and the large tuning slide.
The trombone is the only brass instrument in a classical orchestra (I specify classical because variations such as the superbone also exist) where the main mode of pitch control is by moving the tuning slide. This means that, like string instruments (violin, viola, cello, etc), the pitch is continuous: I will get into why this is important later. But for now, one obvious advantage is that this allows us to do “real” glissandos, where the pitch smoothly transitions from one note to another.
As a brass instrument, you also “buzz” into the metal mouthpiece in order to play the trombone. “Buzzing” is the act of vibrating the lips against the mouthpiece to produce sound. If you just relax your lips and blow air (without vocalizing any pitch), that’s pretty close to what we call a “buzz”.
On a piano, you just press a key to play a note. For a trombone, you change the “slide position” where extending it makes a lower note.
Of course, since there’s only 7 slide positions (where 1st position is where the slide is fully retracted and the 7th is where the slide is fully extended), you would also need to adjust your embouchure (the way you shape your lips and tongue) to get to different “partials” to hit higher or lower notes.
To understand how that works (one of the hardest parts of playing a brass instrument), we need to look at the standing waves inside the trombone.
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